\"\"

\

The equation is \"\".

\

Solve by algebraically.

\

\"\"             (Subtract 22 from each side)

\

\"\"                               (Simplify)

\

\"\"                          (Divide each side by 2)

\

\"\"                                 (Divide: \"\") \ \ The solution is \"\".\"\"

\

Solve by graphing.

\

The equation is \"\".

\

The related function is \"\".

\

To graph the function make a table

\

Draw a table

\ \
\ \
\ \
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\

x

\
\

f(x) = 2x +22

\
\

f(x)

\
\

(x, f(x))

\
\

\"\"9 \ \

\
\

= 2(\"\"9) +22

\
\

     4 \ \

\
\

(\"\"9, 4)

\
\

    \"\"10

\
\

= 2(\"\"10) +22

\
\

2

\
\

(\"\"10,2)

\
\

\"\"

\

Use these ordered pairs to graph the equation.

\

1.      Draw a coordinate plane.

\

2.      Plot the points.

\

3.      Draw a line through these points.

\

\"The

\

The graph intersects the x-axis at \"\", hence the solution is \"\".\"\"

\

The root of the equation \"\"  is \"\".